feat: optimize auto context memory

agentscope-examples/advanced/src/main/java/io/agentscope/examples/advanced/AutoMemoryExample.java

@@ -61,7 +61,7 @@ public static void main(String[] args) {
                         .apiBaseUrl("https://api.mem0.ai");
         Mem0LongTermMemory longTermMemory = builder.build();
         AutoContextConfig autoContextConfig =
-                AutoContextConfig.builder().tokenRatio(0.3).lastKeep(10).build();
+                AutoContextConfig.builder().tokenRatio(0.4).lastKeep(10).build();
         AutoContextMemory memory = new AutoContextMemory(autoContextConfig, chatModel);
 
         Toolkit toolkit = new Toolkit();
@@ -83,7 +83,7 @@ public static void main(String[] args) {
                         .enablePlan()
                         .toolkit(toolkit)
                         .build();
-        String sessionId = "session1234567";
+        String sessionId = "session000005";
         // Set up session path
         Path sessionPath =
                 Paths.get(System.getProperty("user.home"), ".agentscope", "examples", "sessions");

agentscope-extensions/agentscope-extensions-autocontext-memory/src/main/java/io/agentscope/core/memory/autocontext/AutoContextConfig.java

@@ -54,6 +54,9 @@ public class AutoContextConfig {
     /** Minimum number of consecutive tool messages required for compression. */
     int minConsecutiveToolMessages = 6;
 
+    /** Compression ratio (0.0-1.0) for current round messages. Default is 0.3 (30%). */
+    double currentRoundCompressionRatio = 0.3;
+
     public long getLargePayloadThreshold() {
         return largePayloadThreshold;
     }
@@ -110,6 +113,14 @@ public void setMinConsecutiveToolMessages(int minConsecutiveToolMessages) {
         this.minConsecutiveToolMessages = minConsecutiveToolMessages;
     }
 
+    public double getCurrentRoundCompressionRatio() {
+        return currentRoundCompressionRatio;
+    }
+
+    public void setCurrentRoundCompressionRatio(double currentRoundCompressionRatio) {
+        this.currentRoundCompressionRatio = currentRoundCompressionRatio;
+    }
+
     /**
      * Creates a new Builder instance for constructing AutoContextConfig.
      *
@@ -142,6 +153,7 @@ public static class Builder {
         private int msgThreshold = 100;
         private int lastKeep = 50;
         private int minConsecutiveToolMessages = 6;
+        private double currentRoundCompressionRatio = 0.3;
 
         /**
          * Sets the threshold (in characters) for large payload messages to be offloaded.
@@ -220,6 +232,19 @@ public Builder minConsecutiveToolMessages(int minConsecutiveToolMessages) {
             return this;
         }
 
+        /**
+         * Sets the compression ratio (0.0-1.0) for current round messages.
+         * Default is 0.3 (30%), meaning the compressed output should be approximately
+         * 30% of the original token count.
+         *
+         * @param currentRoundCompressionRatio the compression ratio (0.0-1.0)
+         * @return this builder instance for method chaining
+         */
+        public Builder currentRoundCompressionRatio(double currentRoundCompressionRatio) {
+            this.currentRoundCompressionRatio = currentRoundCompressionRatio;
+            return this;
+        }
+
         /**
          * Builds and returns a new AutoContextConfig instance with the configured values.
          *
@@ -234,6 +259,7 @@ public AutoContextConfig build() {
             config.msgThreshold = this.msgThreshold;
             config.lastKeep = this.lastKeep;
             config.minConsecutiveToolMessages = this.minConsecutiveToolMessages;
+            config.currentRoundCompressionRatio = this.currentRoundCompressionRatio;
             return config;
         }
     }